Backpack



FIG. 1 is a perspective view of a backpack, showing my new design with aplurality of pockets each in a closed configuration;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left-side elevational view thereof;

FIG. 7 is a right-side elevational view thereof;

FIG. 8 is a perspective view thereof, illustrated with several of thepockets in an open position;

FIG. 9 is a left-side elevational view of FIG. 8;

FIG. 10 is a front elevational view of FIG. 8; and,

FIG. 11 is a right-side elevational view of FIG. 8.

The broken lines showing items in pockets in FIGS. 8-11 depictenvironmental matter and form no part of the claimed design.

CLAIM I claim the ornamental design for a backpack, as shown anddescribed.